CN116184732A - Decorative film element and method for manufacturing same - Google Patents

Abstract

The invention discloses a decorative film element and a manufacturing method thereof, wherein the decorative film element comprises a first substrate, a second substrate, a cholesterol liquid crystal layer, a first alignment pattern and a second alignment pattern. The first substrate and the second substrate are overlapped. The cholesterol liquid crystal layer is arranged between the first substrate and the second substrate. The first alignment pattern is disposed between the first substrate and the cholesteric liquid crystal layer. The second alignment pattern is disposed between the second substrate and the cholesteric liquid crystal layer. The cholesterol liquid crystal layer includes a first portion overlapping the first alignment pattern and the second alignment pattern and a second portion not overlapping the first alignment pattern and the second alignment pattern. The first reflectivity of the first portion is different from the second reflectivity of the second portion.

Description

Decorative film element and method for manufacturing same

Technical Field

The present invention relates to a decoration film technology, and more particularly, to a decoration film element and a manufacturing method thereof.

Background

With the trend of miniaturization and light weight of electronic products, many portable products such as notebook computers, personal mobile assistants, mobile phones, etc. have been regarded as daily devices. In addition to the physical functional requirements, the design of the appearance is also an important consideration for the purchaser.

Conventionally, if drawing or decoration is to be performed on a plastic housing, a pattern is mainly applied to the surface of the housing by spraying or printing to present various patterns or colors. However, the masking coating or masking sheet must be repeatedly used to form the desired area for spraying during the spraying process, and then the coating is performed with various coatings. Such a procedure is quite time consuming and cumbersome.

Disclosure of Invention

The invention provides a decorative film element, which has a simple film structure and better display effect.

The invention provides a manufacturing method of a decorative film element, which has the advantages of simplified manufacturing process and larger design margin of display patterns.

The decorative film element comprises a first substrate, a second substrate, a cholesterol liquid crystal layer, a first alignment pattern and a second alignment pattern. The first substrate and the second substrate are overlapped. The cholesterol liquid crystal layer is arranged between the first substrate and the second substrate. The first alignment pattern is disposed between the first substrate and the cholesteric liquid crystal layer. The second alignment pattern is disposed between the second substrate and the cholesteric liquid crystal layer. The cholesterol liquid crystal layer includes a first portion overlapping the first alignment pattern and the second alignment pattern and a second portion not overlapping the first alignment pattern and the second alignment pattern. The first reflectivity of the first portion is different from the second reflectivity of the second portion.

The invention relates to a manufacturing method of a decorative film element, which comprises the steps of forming a first alignment pattern on a first substrate, forming a second alignment pattern on a second substrate, performing an alignment manufacturing process on the first alignment pattern and the second alignment pattern, and assembling the first substrate and the second substrate, so that a cholesterol liquid crystal layer is filled between the first substrate and the second substrate. The cholesterol liquid crystal layer includes a first portion overlapping the first alignment pattern and the second alignment pattern and a second portion not overlapping the first alignment pattern and the second alignment pattern. The first reflectivity of the first portion is different from the second reflectivity of the second portion.

Based on the above, in the decorative film element and the manufacturing method thereof according to an embodiment of the invention, the display of the pattern is realized by utilizing the difference of the reflectivity of the cholesteric liquid crystal layer in different areas. The arrangement of the alignment pattern is utilized to enable the cholesterol liquid crystal layer to generate required reflectivity distribution, so that the manufacturing process of the decorative film element can be simplified, and the design margin of the display pattern can be increased. On the other hand, the pattern to be displayed is presented by utilizing the reflectivity difference of the cholesterol liquid crystal layer in the area with the alignment pattern and the area without the alignment pattern, so that the display contrast of the pattern can be further increased.

Drawings

FIG. 1 is a schematic front view of a decorative film element of a first embodiment of the invention;

FIG. 2 is a schematic cross-sectional view of the decorative film element of FIG. 1;

FIGS. 3A to 3G are schematic cross-sectional views of a manufacturing flow of the decorative film member of FIG. 2;

FIG. 4 is a schematic cross-sectional view of another embodiment of the alignment fabrication process of FIG. 3D;

fig. 5A and 5B are schematic top views of the patterned alignment material layer of fig. 3A and 3B;

FIGS. 6A and 6B are schematic cross-sectional views of a decorative film element according to a second embodiment of the present invention operating in different states;

FIG. 7 is a schematic side view of the decorative film element of FIG. 6A applied to a display panel;

fig. 8 is a schematic cross-sectional view of a decorative film member of a third embodiment of the invention.

Symbol description

10 display device

60 roller wheel

70. 90 printing nozzle

80 heating furnace

100. 100A, 100B decorative film element

101 first substrate

101s, 102s surface

102 second substrate

200 display panel

AD1 first alignment direction

AD2 second alignment direction

ALM1 first alignment material layer

ALM2 second alignment material layer

AP1 first alignment pattern

AP2 second alignment pattern

AP3 third alignment pattern

CLC, CLC-A, cholesterol liquid crystal layer

CLCp1 first part

CLCp2 second part

CLCp3 third part

D-CLC cholesterol liquid crystal material layer

E electric field

EB1, EB2, EB3 ambient light

EL1 first electrode layer

EL2 second electrode layer

PLB light ray

PLS polarized light Source

RA1 first reflective zone

RA2 second reflective zone

RA3 third reflective zone

A-A': line of section

Detailed Description

As used herein, "about," "approximately," "substantially," or "essentially" includes mean values of the values and within acceptable deviation of the particular values as determined by one of ordinary skill in the art, taking into account the particular number of measurements and errors associated with the measurements (i.e., limitations of the measurement system) in question. For example, "about" may mean within one or more standard deviations of the values, or within, for example, ±30%, ±20%, ±15%, ±10%, ±5%. Further, "about," "approximately," "substantially," or "essentially" as used herein may be used to select a range of acceptable deviations or standard deviations depending on the measured, cut, or other property, and may be used for all properties without one standard deviation.

In the drawings, the thickness of layers, films, panels, regions, etc. are exaggerated for clarity. It will be understood that when an element such as a layer, film, region or substrate is referred to as being "on" or "connected to" another element, it can be directly on or connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" or "directly connected to" another element, there are no intervening elements present. As used herein, "connected" may refer to physical and/or electrical connections. Furthermore, "electrically connected" may be used in conjunction with other devices that are present between two devices.

Furthermore, relative terms such as "lower" or "bottom" and "upper" or "top" may be used herein to describe one element's relationship to another element as illustrated. It will be understood that relative terms are intended to encompass different orientations of the device in addition to the orientation depicted in the figures. For example, if the device in one figure is turned over, elements described as being on the "lower" side of other elements would then be oriented on the "upper" side of the other elements. Thus, the exemplary term "lower" may include both "lower" and "upper" orientations, depending on the particular orientation of the figure. Similarly, if the device in one figure is turned over, elements described as "below" or "beneath" other elements would then be oriented "above" the other elements. Thus, the exemplary terms "above" or "below" can encompass both an orientation of above and below.

Exemplary embodiments are described herein with reference to cross-sectional illustrations that are schematic illustrations of idealized embodiments. Thus, shape variations of the illustrations as a result, for example, of manufacturing techniques and/or (and/or) tolerances are to be expected. Thus, the embodiments described herein should not be construed as limited to the particular shapes of regions as illustrated herein but are to include deviations in shapes that result, for example, from manufacturing. For example, an area shown or described as being flat may generally have rough and/or nonlinear features. Furthermore, the acute angles shown may be rounded. Thus, the regions illustrated in the figures are schematic in nature and their shapes are not intended to illustrate the precise shape of a region and are not intended to limit the claims.

Reference will now be made in detail to the exemplary embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings and the description to refer to the same or like parts.

Fig. 1 is a schematic front view of a decorative film element according to a first embodiment of the invention. FIG. 2 is a schematic cross-sectional view of the decorative film element of FIG. 1 along section line A-A'. Fig. 3A to 3G are schematic cross-sectional views of a manufacturing flow of the decorative film member of fig. 2. Fig. 4 is a schematic cross-sectional view of another embodiment of the alignment fabrication process of fig. 3D. Fig. 5A and 5B are schematic top views of the patterned alignment material layer of fig. 3A and 3B.

Referring to fig. 1 and 2, the decoration film device 100 includes a first substrate 101, a second substrate 102, a cholesteric liquid crystal layer CLC, a first alignment pattern AP1 and a second alignment pattern AP2. The first substrate 101 and the second substrate 102 are disposed to overlap each other in the vertical direction of fig. 2, for example. The first substrate 101 and the second substrate 102 are, for example, hard substrates or flexible substrates. The material of the rigid substrate may include, for example, glass, quartz, organic polymers, or other suitable materials. Materials for the flexible substrate include, for example, polyimide (PI), polyethylene naphthalate (polyethylene naphthalate, PEN), polyethylene terephthalate (ethylene terephthalate, PET), polycarbonate (PC), polyethersulfone (poly (ether sulfone), PES), polyarylate (polyacrylate), or other suitable materials.

The cholesteric liquid crystal layer CLC is disposed between the first substrate 101 and the second substrate 102. The first alignment pattern AP1 is disposed between the first substrate 101 and the cholesteric liquid crystal layer CLC. The second alignment pattern AP2 is disposed between the second substrate 102 and the cholesteric liquid crystal layer CLC. The alignment pattern is used to define the alignment direction of the cholesteric liquid crystal layer CLC in a natural state (e.g., a state not subjected to an electric field or a magnetic field).

In this embodiment, the cholesteric liquid crystal layer CLC includes a first portion CLCp1 and a second portion CLCp2. It is particularly noted that the first portion CLCp1 overlaps the first alignment pattern AP1 and the second alignment pattern AP2. The second portion CLCp2 does not overlap the first alignment pattern AP1 and the second alignment pattern AP2. For example, the first alignment pattern AP1 may completely overlap the second alignment pattern AP2, but is not limited thereto. It should be noted that, the overlapping relationship is defined, for example, along the stacking direction (e.g., the vertical direction in fig. 2) of the first substrate 101 and the second substrate 102. The overlapping relationship between any two members is defined in the same manner unless otherwise mentioned, and will not be described again.

Further, the cholesteric liquid crystal layer CLC is composed of, for example, a cholesteric liquid crystal molecule having a helical arrangement structure, a nematic (chiral) liquid crystal molecule doped with chiral molecules, or a mixture of the above two types of liquid crystals. Therefore, the plurality of liquid crystal molecules of the cholesteric liquid crystal layer CLC are in a state of exhibiting a twisted arrangement at a specific pitch in a natural state. In particular, the cholesteric liquid crystal layer CLC is adapted to reflect light having a specific wavelength range, wherein the dominant wavelength of light that can be reflected by the cholesteric liquid crystal layer CLC can be adjusted by changing the above-mentioned pitch and refractive index of the cholesteric liquid crystal layer, while light having a wavelength outside the above-mentioned specific wavelength range passes directly through the cholesteric liquid crystal layer CLC.

Since the alignment pattern has an alignment effect on the cholesteric liquid crystal layer CLC, the alignment order of the liquid crystal molecules of the cholesteric liquid crystal layer CLC may be different depending on the presence or absence of the alignment pattern. For example, the alignment order of the cholesteric liquid crystal layer CLC in the region with the alignment pattern is better (e.g., the rotation stacking structure of the liquid crystal molecules is more ordered) than that of the cholesteric liquid crystal layer CLC in the region without the alignment pattern, as shown in the first part CLCp1 of fig. 2. That is, the alignment order of the cholesteric liquid crystal layer CLC in the region without alignment pattern may be poor (e.g., the rotation layered structure of the liquid crystal molecules is more random), as shown in the second portion CLCp2 of fig. 2.

The difference in reflectivity of the first and second portions CLCp1 and CLCp2 of the cholesteric liquid crystal layer CLC to light can be effectively increased by the difference in alignment order of the two portions. For example, a first reflectivity of the first portion CLCp1 of the cholesteric liquid crystal layer CLC to the ambient light EB1 is different from a second reflectivity of the second portion CLCp2 of the cholesteric liquid crystal layer CLC to the ambient light EB 2. Preferably, the difference between the first reflectivity and the second reflectivity is greater than 10%, but is not limited thereto.

For example, in the present embodiment, the decorative film member 100 may be provided with a first reflective area RA1 and a second reflective area RA2. It is particularly noted that the first reflective area RA1 may be defined by the distribution areas of the first alignment pattern AP1 and the second alignment pattern AP2, while the area not provided with the alignment pattern defines the second reflective area RA2. Therefore, the decorative film element 100 can present the pattern or text to be displayed (as shown in fig. 1) by the reflectivity difference of the first reflective area RA1 and the second reflective area RA2 for the ambient light, and the display contrast of the two reflective areas can be improved by the arrangement of the alignment pattern.

A method of manufacturing the decorative film member 100 will be exemplarily described below. Referring to fig. 3A and 3B, first, a patterned first alignment material layer ALM1 (shown in fig. 5A) and a patterned second alignment material layer ALM2 (shown in fig. 5B) are formed on a surface 101s of a first substrate 101 and a surface 102s of a second substrate 102, respectively. For example, in the present embodiment, a patterned alignment material layer may be formed by using an inkjet printing (IJP) fabrication process. During inkjet printing, the alignment material is sprayed onto the corresponding substrate via a print head 70 that moves within a set area. Since the degree of freedom of displacement of the printing head 70 is preferable, the orthographic projection profile of the sprayed alignment material layer on the substrate may be circular, elongated, annular, triangular, or any other shape, and the arrangement pitch of different or the same pattern may be arbitrarily adjusted. However, the present invention is not limited thereto. In other embodiments, the step of forming the alignment material layer may also be performed by screen printing.

After the coating of the alignment material layer is completed, a baking process is performed to form a first alignment pattern AP1 and a second alignment pattern AP2 as shown in fig. 3D, respectively, on the first alignment material layer ALM1 and the second alignment material layer ALM 2. As shown in fig. 3C, in the baking step of the alignment material layer, for example, the first substrate 101 coated with the first alignment material layer ALM1 and the second substrate 102 coated with the second alignment material layer ALM2 are simultaneously or sequentially transferred into the heating furnace 80 for baking, so that the alignment material layer is heated and cured into a patterned alignment layer (i.e. alignment pattern).

Referring to fig. 3D, after the step of forming the alignment patterns is completed, an alignment process is performed on the first alignment pattern AP1 and the second alignment pattern AP2. In the present embodiment, the alignment process includes, for example, rubbing the first alignment pattern AP1 and the second alignment pattern AP2 with a roller 60 having naps on the surface. For example, during the brushing process, the first substrate 101 provided with the first alignment pattern AP1 advances along the moving direction (e.g. left in fig. 3D), and the moving direction of the roller 60 contacting the first alignment pattern AP1 on one side surface of the first substrate 101 (e.g. right in fig. 3D) is opposite to the moving direction of the first substrate 101, but not limited thereto. The second alignment pattern AP2 is also brush-aligned in the same manner. The brushed first and second alignment patterns AP1 and AP2 have first and second alignment directions AD1 and AD2, respectively.

However, the present invention is not limited thereto. In another embodiment, the alignment process may be performed by irradiating the first alignment pattern AP1 and the second alignment pattern AP2 with polarized light source PLS (as shown in fig. 4), and the alignment pattern material includes Polyamide-imide (PAI). More specifically, during the alignment process, the polarized light source PLS emits the light PLB with a specific linear polarization state (not shown) toward the alignment pattern, and the alignment pattern has an alignment direction (e.g. the first alignment direction AD1 or the second alignment direction AD 2) after absorbing at least a portion of the light PLB. The alignment direction may be perpendicular or parallel to the linear polarization direction of the light rays PLB.

Referring to fig. 3E to 3G, after the alignment process is completed, the first substrate 101 and the second substrate 102 are assembled, such that the space between the first substrate 101 and the second substrate 102 is filled with the cholesteric liquid crystal layer CLC. In the present embodiment, before the assembly step of the first substrate 101 and the second substrate 102, an inkjet printing (IJP) process may be performed to form a cholesteric liquid crystal material layer D-CLC on the first substrate 101 (or the second substrate 102). For example, the cholesteric liquid crystal material may be sprayed with a plurality of droplets (as shown in fig. 3F) on the first substrate 101 provided with the first alignment pattern AP1 at substantially the same pitch through the printing nozzle 90, and the droplets may be arranged in an array to form a cholesteric liquid crystal material layer D-CLC, but not limited thereto.

After forming a cholesteric liquid crystal material layer D-CLC composed of a plurality of droplets on the first substrate 101, the first substrate 101 and the second substrate 102 are assembled. For example, the second substrate 102 is turned over so that the surface 102s provided with the second alignment pattern AP2 faces the first substrate 101, and alignment is performed so that the first alignment pattern AP1 and the second alignment pattern AP2 are substantially aligned with each other (as shown in fig. 3F). In the embodiment, the first alignment direction AD1 of the aligned first alignment pattern AP1 may be antiparallel to the second alignment direction AD2 of the second alignment pattern AP2, but is not limited thereto.

Next, the second substrate 102 is brought close to the first substrate 101 and stopped at a position spaced apart from the first substrate 101. Specifically, during the movement of the second substrate 102 toward the first substrate 101, the droplets of the cholesteric liquid crystal material D-CLC are pressed by the second substrate 102 to spread around and fill the space between the first substrate 101 and the second substrate 102, so as to form the cholesteric liquid crystal layer CLC interposed between the first substrate 101 and the second substrate 102 (as shown in fig. 3G). Thus, the fabrication of the decorative film element 100 of fig. 2 is completed.

In the present embodiment, the pattern (e.g., HELLO word pattern of fig. 1) display of the decorative film element 100 is realized by utilizing the difference in reflectivity of the cholesteric liquid crystal layer CLC in different regions (e.g., the first reflective region RA1 and the second reflective region RA 2). In addition, the patterned alignment layers (e.g., the first alignment pattern AP1 and the second alignment pattern AP 2) are used to generate the desired reflectivity distribution of the cholesteric liquid crystal layer CLC, which can simplify the manufacturing process of the decorative film element 100 and increase the design margin of the display pattern.

The present invention will be described in detail by referring to other embodiments, wherein like reference numerals are used to designate like elements, and descriptions of the same technical content are omitted, and reference is made to the foregoing embodiments for the omitted parts, so that the description is omitted.

Fig. 6A and 6B are schematic cross-sectional views of a decorative film element according to a second embodiment of the present invention operating in different states. FIG. 7 is a schematic side view of the decorative film element of FIG. 6A applied to a display panel.

Referring to fig. 6A, the difference between the decorative film element 100A of the present embodiment and the decorative film element 100 of fig. 2 is that: the decorative film element 100A of the present embodiment further includes a first electrode layer EL1 and a second electrode layer EL2. The first electrode layer EL1 is disposed between the first alignment pattern AP1 and the first substrate 101. The second electrode layer EL2 is disposed between the second alignment pattern AP2 and the second substrate 102.

For example, in the present embodiment, the first electrode layer EL1 and the second electrode layer EL2 may be transparent conductive films disposed on the first substrate 101 and the second substrate 102, respectively, but not limited thereto. More specifically, the first electrode layer EL1 and the second electrode layer EL2 overlap the first alignment pattern AP1, the second alignment pattern AP2, and the region other than the alignment patterns (for example, the second reflection region RA2 where the alignment patterns are not provided). Therefore, the cholesteric liquid crystal layer CLC overlaps the first electrode layer EL1 and the second electrode layer EL2 in both the first portion CLCp1 overlapping the first alignment pattern AP1 and the second alignment pattern AP2 and the second portion CLCp2 not overlapping the alignment pattern, and is driven by both the electrode layers simultaneously. The material of the transparent conductive film may include a metal oxide, for example: indium tin oxide, indium zinc oxide, aluminum tin oxide, aluminum zinc oxide, or other suitable oxide, or a stack of at least two of the foregoing.

By providing the electrode layer, the decorative film element 100A can have a switching function for displaying a pattern. For example, when the first electrode layer EL1 and the second electrode layer EL2 are disabled, the first reflectivity of the cholesteric liquid crystal layer CLC at the first portion CLCp1 overlapped with the first alignment pattern AP1 and the second alignment pattern AP2 is higher than the second reflectivity of the second portion CLCp2 not overlapped with the alignment pattern. At this time, the decorative film member 100A may exhibit a word or other pattern as shown in fig. 1.

In contrast, when the first electrode layer EL1 and the second electrode layer EL2 are enabled to form an electric field E between the two electrodes, the long axes of the liquid crystal molecules of the cholesteric liquid crystal layer CLC tend to be aligned substantially along the direction of the electric field E, as shown in fig. 6B. At this time, the ambient light EB1 and the ambient light EB2 may directly pass through the cholesteric liquid crystal layer CLC. That is, the decorative film member 100A is operated in a light-transmitting state without displaying any pattern.

Further, the decorative film element 100A of the present embodiment may be overlapped on the display panel 200 to form the display device 10 (as shown in fig. 7) with an adjustable appearance, wherein the display panel 200 is, for example, a liquid crystal display panel or a light emitting diode display panel. The display device 10 has a variety of appearance by the electrically controllable switching characteristic of the display pattern on the decorative film element 100A, so that the visual experience of the viewer can be enriched.

However, the present invention is not limited thereto. In other embodiments, the display panel 200 may be disposed above the decorative film member 100A instead, and the display panel 200 is, for example, a light emitting diode display panel with a certain transmittance.

Fig. 8 is a schematic cross-sectional view of a decorative film member according to a third embodiment of the present invention. Referring to fig. 8, the difference between the decorative film element 100B of the present embodiment and the decorative film element 100A of fig. 6A is that: the decorative film member 100B further includes a third alignment pattern AP3 that does not overlap the first and second alignment patterns AP1 and AP2. In the present embodiment, the third alignment pattern AP3 may be disposed on the first substrate 101, but is not limited thereto. In other embodiments, the third alignment pattern AP3 may also be disposed on the second substrate 102. It is noted that the distribution area of the third alignment pattern AP3 may define the third reflective area RA3 of the decorative film element 100B.

In this embodiment, the cholesteric liquid crystal layer CLC-se:Sub>A further includes se:Sub>A third portion CLCp3 overlapping the third alignment pattern AP3. It is particularly noted that, since the third portion CLCp3 of the cholesteric liquid crystal layer CLC-se:Sub>A is subjected to only one surface of the third alignment pattern AP3, its alignment order in se:Sub>A natural state may be intermediate between that of the first and second portions CLCp1 and CLCp2. For example, the rotation stacking structure of the liquid crystal molecules of the third portion CLCp3 may be aligned at a side close to the third alignment pattern, and the rotation stacking structure of the liquid crystal molecules at a side close to the second substrate 102 and not provided with any alignment pattern may be disordered.

Thus, the third reflectivity of the third portion CLCp3 of the cholesteric liquid crystal layer CLC-se:Sub>A to the ambient light EB3 may be different from the first reflectivity of the first portion CLCp1 to the ambient light EB1 and the second reflectivity of the second portion CLCp2 to the ambient light EB 2. For example: the third reflectivity may be between the first reflectivity and the second reflectivity. Therefore, the display gray scale number of the decorative pattern can be further increased so as to meet more use situations.

In summary, in the decorative film element and the manufacturing method thereof according to an embodiment of the invention, the pattern display is realized by using the reflectance difference of the cholesteric liquid crystal layer in different regions. The arrangement of the alignment pattern is utilized to enable the cholesterol liquid crystal layer to generate required reflectivity distribution, so that the manufacturing process of the decorative film element can be simplified, and the design margin of the display pattern can be increased. On the other hand, the pattern to be displayed is presented by utilizing the reflectivity difference of the cholesterol liquid crystal layer in the area with the alignment pattern and the area without the alignment pattern, so that the display contrast of the pattern can be further increased.

Claims (10)

1. A decorative film element comprising:

the first substrate and the second substrate are arranged in an overlapping mode;

a cholesterol liquid crystal layer arranged between the first substrate and the second substrate;

a first alignment pattern disposed between the first substrate and the cholesteric liquid crystal layer; and

the second alignment pattern is arranged between the second substrate and the cholesterol liquid crystal layer, wherein the cholesterol liquid crystal layer comprises a first part overlapped with the first alignment pattern and the second alignment pattern and a second part not overlapped with the first alignment pattern and the second alignment pattern, and the first reflectivity of the first part is different from the second reflectivity of the second part.

2. The decorative film element of claim 1, wherein the first reflectivity differs from the second reflectivity by greater than 10%.

3. The decorative film element of claim 1, further comprising:

a first electrode layer disposed between the first alignment pattern and the first substrate; and

and a second electrode layer disposed between the second alignment pattern and the second substrate, wherein the first portion and the second portion of the cholesteric liquid crystal layer overlap the first electrode layer and the second electrode layer.

4. The decorative film element of claim 1, wherein the first alignment pattern overlaps the second alignment pattern.

5. The decorative film element of claim 3, further comprising:

the third alignment pattern is arranged on the first substrate or the second substrate and is not overlapped with the second alignment pattern and the third alignment pattern, wherein the cholesterol liquid crystal layer further comprises a third part overlapped with the third alignment pattern, and the third reflectivity of the third part is different from the first reflectivity and the second reflectivity.

6. A method of manufacturing a decorative film element, comprising: forming a first alignment pattern on a first substrate;

forming a second alignment pattern on a second substrate;

performing an alignment manufacturing process on the first alignment pattern and the second alignment pattern; and

and assembling the first substrate and the second substrate, so that a cholesterol liquid crystal layer is filled between the first substrate and the second substrate, wherein the cholesterol liquid crystal layer comprises a first part overlapped with the first alignment pattern and the second alignment pattern and a second part not overlapped with the first alignment pattern and the second alignment pattern, and the first reflectivity of the first part is different from the second reflectivity of the second part.

7. The method of manufacturing a decorative film element according to claim 6, wherein the step of forming the first alignment pattern and the second alignment pattern comprises:

performing an inkjet printing process to form a patterned first alignment material layer and a patterned second alignment material layer on the first substrate and the second substrate, respectively; and

and performing a baking process to form the first alignment pattern and the second alignment pattern on the first alignment material layer and the second alignment material layer respectively.

8. The method of manufacturing a decorative film element as claimed in claim 6, wherein the alignment process comprises the steps of:

and brushing the first alignment pattern and the second alignment pattern.

9. The method of manufacturing a decorative film element according to claim 6, wherein the material of the first alignment pattern and the second alignment pattern comprises polyamideimide, and the alignment process comprises the steps of:

the first alignment pattern and the second alignment pattern are irradiated with a polarized light source.

10. The method of claim 6, wherein an inkjet printing process is performed to form a cholesteric liquid crystal material layer on the first substrate or the second substrate before the assembling steps of the first substrate and the second substrate are performed, and the cholesteric liquid crystal material layer is formed after the assembling steps of the first substrate and the second substrate are completed.

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